#include "components/performance_manager/embedder/performance_manager_registry.h"
#include "components/performance_manager/performance_manager_registry_impl.h"
#include "components/performance_manager/performance_manager_tab_helper.h"
namespace performance_manager {
std::unique_ptr<PerformanceManagerRegistry>
PerformanceManagerRegistry::Create() { … }
PerformanceManagerRegistry* PerformanceManagerRegistry::GetInstance() { … }
void PerformanceManagerRegistry::MaybeCreatePageNodeForWebContents(
content::WebContents* web_contents) { … }
}